<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <title>center</title>
        <style type="text/css">
            img{border:none;}
            body {margin: 0px;padding:0px;overflow:hidden;}
            .navPoint {color: white;font-size: 9pt } 
        </style> 
        <script>
            function switchSysBar(){ 
                var locate=location.href.replace('center.html','');
                var ssrc=document.getElementById("img1").src.replace(locate,'');
                if (ssrc=="img/trig.gif")
                { 
                    document.getElementById("img1").src="img/trig1.gif";
                    document.getElementById("frmTitle").style.display="none";
                } 
                else
                { 
                    document.getElementById("img1").src="img/trig.gif";
                    document.getElementById("frmTitle").style.display="";
                } 
            } 
        </script>
    </head>
    <body>
        <table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0" style="table-layout:fixed;">
            <tr>
                <td width="160" id="frmTitle" name="fmTitle" align="center" valign="top">
                    <iframe id="leftFrame" name="leftFrame" height="100%" width="160" src="about:blank"  border="0" frameborder="0" style="overflow:auto;"></iframe>	
                </td>
                <td width="4" valign="middle" style="background:#7D7D7D;cursor:pointer;" onclick="switchSysBar();"  title="展开/关闭">
                    <span class="navPoint"><img src="img/trig.gif" width="4" height="52" id="img1"/></span>
                </td>
                <td align="center" valign="top">
                    <iframe id="main" name="main" height="100%" width="100%" border="0" frameborder="0" src="right.html"></iframe>
                </td>
                <td width="2" align="center" valign="top"></td>
            </tr>
        </table>
        <script>
            document.getElementById('leftFrame').src='left.jsp?t='+(new Date()).getTime();
        </script>
    </body>
</html>
